[Bug fortran/43849] Add _gfortran_finalize function to close down the library

[steven at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43849

Steven Bosscher  changed:

   What|Removed |Added

 Status|WAITING |NEW
 CC||steven at gcc dot gnu.org

--- Comment #5 from Steven Bosscher  ---
(In reply to Dominique d'Humieres from comment #4)
> Is this PR still pertinent (2013-12-21)?

Yes, it could be necessary to force the shutdown from other libraries
that may want to output something and will need the buffers to be
flushed for that (e.g. libcaf).

[Bug fortran/43849] Add _gfortran_finalize function to close down the library

[dominiq at lps dot ens.fr]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43849

Dominique d'Humieres  changed:

   What|Removed |Added

 Status|UNCONFIRMED |WAITING
   Last reconfirmed||2013-12-21
 Ever confirmed|0   |1

--- Comment #4 from Dominique d'Humieres  ---
Is this PR still pertinent (2013-12-21)?

[Bug fortran/43849] Add _gfortran_finalize function to close down the library

[jb at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43849

Janne Blomqvist  changed:

   What|Removed |Added

 CC||jb at gcc dot gnu.org

--- Comment #3 from Janne Blomqvist  2010-11-03 16:31:08 
UTC ---
In runtime/main.c we have

static void __attribute__((destructor))
cleanup (void)
{
  close_units ();

  if (please_free_exe_path_when_done)
free ((char *) exe_path);
}

As this function is marked with the destructor attribute, it will be called
when the library is unloaded during program shutdown. 


It might make sense to add 

fbuf_flush(u);
sflush(u);

to some appropriate place in unit.c(close_unit_1). That is, make sure to flush
the unit as part of the closing procedure.

[Bug fortran/43849] Add _gfortran_finalize function to close down the library

[burnus at gcc dot gnu dot org]

--- Comment #2 from burnus at gcc dot gnu dot org  2010-04-22 13:29 ---
Forgot to mention that one can then also print the exception status:

"8.4 STOP and ERROR STOP statements" (F2008 FDIS):

"If any exception (cf. 14 Exceptions and IEEE arithmetic) is signaling on that
image, the processor shall issue a warning indicating which exceptions are
signaling; this warning shall be on the unit identified by the named constant
ERROR_UNIT (13.8.2.8). It is recommended that the stop code is made available
by formatted output to the same unit."


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43849

[Bug fortran/43849] Add _gfortran_finalize function to close down the library

[burnus at gcc dot gnu dot org]

--- Comment #1 from burnus at gcc dot gnu dot org  2010-04-22 13:19 ---
Thus:

a) Create a function named, e.g., _gfortran_shutdown/_gfortran_finalize, which
calls
   flush_all_units ();
   close_units ();

b) Call it from:
   _gfortran_abort
   _gfortran_stop_numeric;
   _gfortran_stop_string;
   _gfortran_error_stop_string
   _gfortran_error_stop_numeric (not yet existing)
and maybe from the run-time error calls such as
   _gfortran_runtime_error
   _gfortran_runtime_error_at

c) Change trans-decl.c's create_main_function to call it

d) Update gfortran.texi

e) Add a call to the gfortran CAF library for ERROR STOP


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43849